117258813 has 48 divisors (see below), whose sum is σ = 203448960. Its totient is φ = 66552192.

The previous prime is 117258797. The next prime is 117258851. The reversal of 117258813 is 318852711.

117258813 is a `hidden beast` number, since 1 + 1 + 72 + 588 + 1 + 3 = 666.

It is not a de Polignac number, because 117258813 - 2⁴ = 117258797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117258863) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 347781 + ... + 348117.

It is an arithmetic number, because the mean of its divisors is an integer number (4238520).

Almost surely, 2^117258813 is an apocalyptic number.

It is an amenable number.

117258813 is a deficient number, since it is larger than the sum of its proper divisors (86190147).

117258813 is a wasteful number, since it uses less digits than its factorization.

117258813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 610 counting only the distinct ones).

The product of its digits is 13440, while the sum is 36.

The square root of 117258813 is about 10828.6108527364. The cubic root of 117258813 is about 489.4576993575.

The spelling of 117258813 in words is "one hundred seventeen million, two hundred fifty-eight thousand, eight hundred thirteen".